A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.
Multifunctional Alarm Clock
Unlike old-school mechanical alarm clocks that you have to set manually, this Internet-connected alarm clock provides three primary features: automatic time setting on power-up, streaming MP3 music, and remote management.
The easy-to-use, PIC24FJ64-based clock is connected to an ENC28J60 Ethernet chip, an MP3 decoder chip for streaming music, an organic LED graphical display, and a 24LC512 EEPROM for storing alarm data, fonts, and images. A photocell and seven buttons are monitored via ADC inputs, and the music volume is both monitored and
overridden via a single pin used as both an ADC input and a GPIO output. ( )